The effect of coal bottom ash (CBA) on mechanical and durability characteristics of concrete

Rizwan Ahmad Khan, Atluri Ganesh


DOI

Abstract


The present paper would contribute to the efforts being made in the field of concrete technology towards development of concretes possessing good strength and durability properties along with economic and ecological advantage. In the present study it was found that with increase in amount of coal bottom ash, standard consistency, initial and final setting time increase at the same time workability of concrete decreases. Early age strength is less for bottom ash concrete compare to control mix, but as the age increases they show good improvement in strength due to pozzalanic reaction. Optimum dosage is observed to be 10% Grinded Bottom Ash (GBA) which shows about 14 % more strength compared to control mix at 56 days. Also 20% replacement by GBA gives results comparable to control concrete. GBA concrete shows more resistance to acid attack compared to Original Bottom Ash (OBA). Mix M7 with 30 % replacement by GBA shows highest resistance to acid attack. With the increase in amount of bottom ash water absorption capacity of concrete increases, also as the age increases for all the mix water absorption capacity decreases. It was also found that at optimum dosage i.e at 10% replacement of cement with GBA it is also economical and also less amount of CO2 is emitted that mean it is also environmental friendly compared to control mix.

Full Text:

PDF

References


Andrade, L. B., Rocha, J. C., & Cheriaf, M. (2007). Aspects of moisture kinetics of coal bottom ash in concrete. Cement and concrete research, 37(2), 231-241.

Andrade, L. B., Rocha, J. C., & Cheriaf, M. (2009). Influence of coal bottom ash as fine aggregate on fresh properties of concrete. Construction and Building Materials, 23(2), 609-614.

Bai, Y., Darcy, F., & Basheer, P. A. M. (2005). Strength and drying shrinkage properties of concrete containing furnace bottom ash as fine aggregate. Construction and Building materials, 19(9), 691-697.

Bajare, D., Bumanis, G., & Upeniece, L. (2013). Coal combustion bottom ash as microfiller with pozzolanic properties for traditional concrete. Procedia Engineering, 57, 149-158.

Cheriaf, M., Rocha, J. C., & Pera, J. (1999). Pozzolanic properties of pulverized coal combustion bottom ash. Cement and concrete research, 29(9), 1387-1391.

IS 10262 2009. Concrete mix proprtioning guidelines, 9Bhadur Shah Zafar Marg, New Delhi, 110002.

IS 1489-1,1991. Specification for Portland pozzolona cement, Manak Bhavan, 9Bhadur Shah Zafar Marg, New Delhi, 110002.

IS 4031 Part-4 1988. Determination of consistency of standard cement paste, Manak Bhavan, 9Bhadur Shah ZafarMarg, New Delhi, 110002.

IS 4031,1988.Methods of Physical tests for hydraulic cement, Manak Bhavan, 9Bhadur Shah Zafar Marg, New Delhi, 110002.

Isaia, G. C., GASTALDInI, A. L. G., & Moraes, R. (2003). Physical and pozzolanic action of mineral additions on the mechanical strength of high-performance concrete. Cement and concrete composites, 25(1), 69-76.

Jaturapitakkul, C., & Cheerarot, R. (2003). Development of bottom ash as pozzolanic material. Journal of materials in civil engineering, 15(1), 48-53.

Kim, H. K., & Lee, H. K. (2011). Use of power plant bottom ash as fine and coarse aggregates in high-strength concrete. Construction and Building Materials, 25(2), 1115-1122.

Kim, H. K., Jang, J. G., Choi, Y. C., & Lee, H. K. (2014). Improved chloride resistance of high-strength concrete amended with coal bottom ash for internal curing. Construction and Building Materials, 71, 334-343.

Kolay, P. K., & Singh, D. P. (2001). Physical, chemical, mineralogical, and thermal properties of cenospheres from an ash lagoon. Cement and Concrete Research, 31(4), 539-542.

Kurama, H., & Kaya, M. (2008). Usage of coal combustion bottom ash in concrete mixture. Construction and building materials, 22(9), 1922-1928.

Kurama, H., Topcu, I. B., & Karakurt, C. (2009). Properties of the autoclaved aerated concrete produced from coal bottom ash. Journal of materials processing technology, 209(2), 767-773.

Nikbin, I. M., Rahimi, S., Allahyari, H., & Damadi, M. (2016). A comprehensive analytical study on the mechanical properties of concrete containing waste bottom ash as natural aggregate replacement. Construction and Building Materials, 121, 746-759.

Rafieizonooz, M., Mirza, J., Salim, M. R., Hussin, M. W., & Khankhaje, E. (2016). Investigation of coal bottom ash and fly ash in concrete as replacement for sand and cement. Construction and Building Materials, 116, 15-24.

Siddique, R. (2013). Compressive strength, water absorption, sorptivity, abrasion resistance and permeability of self-compacting concrete containing coal bottom ash. Construction and Building Materials, 47, 1444-1450.

Siddique, R., Aggarwal, P., & Aggarwal, Y. (2012). Influence of water/powder ratio on strength properties of self-compacting concrete containing coal fly ash and bottom ash. Construction and Building Materials, 29, 73-81.

Singh, M., & Siddique, R. (2014). Strength properties and micro-structural properties of concrete containing coal bottom ash as partial replacement of fine aggregate. Construction and Building Materials, 50, 246-256.


Article views 2129





Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Civil Engineering and Architecture Faculty- University Amar Telidji of Laghouat JBMS@2019.